Support Maps of embedded value types

If we have a class with a Map<String, OtherType> and our OtherType we want to have embedded into a join table, then this currently isn't supported (we assume the value is an entity in its own right and has its own table).

Description

If we have a class with a Map<String, OtherType> and our OtherType we want to have embedded into a join table, then this currently isn't supported (we assume the value is an entity in its own right and has its own table).